CVE-2022-38371

Name: CVE-2022-38371
Creator: NVD / NIST
Published: 2022-10-11T11:15:10.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 1.26%

Last modified Jun 17, 2026

CVE-2022-38371 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All versions), APOGEE MEC (PPC) (P2 Ethernet) (All versions), APOGEE PXC Compact (BACnet) (All versions < V3.5.7), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.21), APOGEE PXC Modular (BACnet) (All versions < V3.5.7), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.21), Desigo PXC00-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC00-U (All versions >= V2.3 < V6.30.37), Desigo PXC001-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC100-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC12-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC128-U (All versions >= V2.3 < V6.30.37), Desigo PXC200-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC22-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC22.1-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC36.1-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC50-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC64-U (All versions >= V2.3 < V6.30.37), Desigo PXM20-E (All versions >= V2.3 < V6.30.37), Nucleus NET for Nucleus PLUS V1 (All versions < V5.2a), Nucleus NET for Nucleus PLUS V2 (All versions < V5.4), Nucleus ReadyStart V3 V2012 (All versions < V2012.08.1), Nucleus ReadyStart V3 V2017 (All versions < V2017.02.4), Nucleus Source Code (All versions including affected FTP server), TALON TC Compact (BACnet) (All versions < V3.5.7), TALON TC Modular (BACnet) (All versions < V3.5.7). The FTP server does not properly release memory resources that were reserved for incomplete connection attempts by FTP clients. EPSS estimates a 1.26% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All versions), APOGEE MEC (PPC) (P2 Ethernet) (All versions), APOGEE PXC Compact (BACnet) (All versions < V3.5.7), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.21), APOGEE PXC Modular (BACnet) (All versions < V3.5.7), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.21), Desigo PXC00-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC00-U (All versions >= V2.3 < V6.30.37), Desigo PXC001-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC100-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC12-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC128-U (All versions >= V2.3 < V6.30.37), Desigo PXC200-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC22-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC22.1-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC36.1-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC50-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC64-U (All versions >= V2.3 < V6.30.37), Desigo PXM20-E (All versions >= V2.3 < V6.30.37), Nucleus NET for Nucleus PLUS V1 (All versions < V5.2a), Nucleus NET for Nucleus PLUS V2 (All versions < V5.4), Nucleus ReadyStart V3 V2012 (All versions < V2012.08.1), Nucleus ReadyStart V3 V2017 (All versions < V2017.02.4), Nucleus Source Code (All versions including affected FTP server), TALON TC Compact (BACnet) (All versions < V3.5.7), TALON TC Modular (BACnet) (All versions < V3.5.7). The FTP server does not properly release memory resources that were reserved for incomplete connection attempts by FTP clients. This could allow a remote attacker to generate a denial of service condition on devices that incorporate a vulnerable version of the FTP server.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

8.7/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

1.26%

65.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	Nucleus Net	All versions
Siemens	Nucleus Readystart V3	All versions
Siemens	Nucleus Source Code	All versions
Siemens	Apogee Modular Building Controller Firmware	All versions
Siemens	Apogee Modular Equiment Controller Firmware	All versions
Siemens	Apogee Pxc Compact Firmware	All versions
Siemens	Apogee Pxc Modular Firmware	All versions
Siemens	Desigo Pxc00-E.D Firmware	<= 2.3
Siemens	Desigo Pxc00-U Firmware	<= 2.3
Siemens	Desigo Pxc001-E.D Firmware	<= 2.3
Siemens	Desigo Pxc12-E.D Firmware	<= 2.3
Siemens	Desigo Pxc22-E.D Firmware	<= 2.3
Siemens	Desigo Pxc22.1-E.D Firmware	<= 2.3
Siemens	Desigo Pxc36.1-E.D Firmware	<= 2.3
Siemens	Desigo Pxc50-E.D Firmware	<= 2.3
Siemens	Desigo Pxc64-U Firmware	<= 2.3
Siemens	Desigo Pxc100-E.D Firmware	<= 2.3
Siemens	Desigo Pxc128-U Firmware	<= 2.3
Siemens	Desigo Pxc200-E.D Firmware	<= 2.3
Siemens	Desigo Pxm20-E Firmware	<= 2.3
Siemens	Talon Tc Compact Firmware	All versions

References

https://cert-portal.siemens.com/productcert/html/ssa-313313.html
https://cert-portal.siemens.com/productcert/html/ssa-935500.html
https://cert-portal.siemens.com/productcert/pdf/ssa-313313.pdfPatch, Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-935500.pdfPatch, Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-313313.html
https://cert-portal.siemens.com/productcert/html/ssa-935500.html
https://cert-portal.siemens.com/productcert/pdf/ssa-313313.pdfPatch, Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-935500.pdfPatch, Vendor Advisory

Timeline

Published: Oct 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-38371?

How severe is CVE-2022-38371?

CVE-2022-38371 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 1.26% probability of exploitation in the next 30 days.

How do I fix CVE-2022-38371?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-38371?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST